Matthew Poole and continuators on 2 Chronicles 28:21

21 For Ahaz took away a portion out of the house of the LORD, and out of the house of the king, and of the princes, and gave it unto the king of Assyria: but he helped him not .

A most Emphatical Expression: for though he weakned his present Enemy the Syrian, as is related, 2 King. 16. 9. yet really and all things considered he did not strengthen Ahaz and his Kingdom, but rather weaken them; for by the removing the Syrian, who, though a Troublesom Neighbour, was a kind of Bulwark to him as to many other Enemies, he smoothed the way for himself a far more Dangerous and Mischievous Enemy, as appears by his Invasion of Judah in the very next Kings Reign.